Hi all,
for some time now I’ve been seeing a strange issue with B4i when using the Hosted Mac Builder in Verion 10.00:
The project compiles successfully without any errors, but fails at runtime on the device with a “Class not found” exception.
XUI is only an example. The problem is not specific to XUI. The same behavior occurs with various other classes, including:
for some time now I’ve been seeing a strange issue with B4i when using the Hosted Mac Builder in Verion 10.00:
The project compiles successfully without any errors, but fails at runtime on the device with a “Class not found” exception.
B4X:
Copying updated assets files (134)
Error occurred on line: 6 (Main)
Class not found: B4IXUI
Stack Trace: (
CoreFoundation 973E47E5-88F0-3367-B9D4-46D5CB999B75 + 825556
libobjc.A.dylib objc_exception_throw + 88
CoreFoundation 973E47E5-88F0-3367-B9D4-46D5CB999B75 + 1394900
XEssentials -[B4IShell createObject:] + 148
XEssentials -[B4IShell raiseEventImpl:method:args::] + 1292
XEssentials -[B4IShellBI raiseEvent:event:params:] + 1008
XEssentials -[B4IStaticModule initializeModule] + 252
XEssentials -[b4i_main initializeStaticModules] + 48
XEssentials -[B4IShellBI raiseEvent:event:params:] + 180
XEssentials __33-[B4I raiseUIEvent:event:params:]_block_invoke + 24
libdispatch.dylib D34AC6A9-10DC-3535-9944-E3EFC5994788 + 6876
libdispatch.dylib D34AC6A9-10DC-3535-9944-E3EFC5994788 + 112620
libdispatch.dylib D34AC6A9-10DC-3535-9944-E3EFC5994788 + 232228
libdispatch.dylib D34AC6A9-10DC-3535-9944-E3EFC5994788 + 69320
libdispatch.dylib _dispatch_main_queue_callback_4CF + 44
CoreFoundation 973E47E5-88F0-3367-B9D4-46D5CB999B75 + 439584
CoreFoundation 973E47E5-88F0-3367-B9D4-46D5CB999B75 + 122132
CoreFoundation 973E47E5-88F0-3367-B9D4-46D5CB999B75 + 117828
GraphicsServices GSEventRunModal + 120
UIKitCore C98EAB32-B273-3430-B0C5-46522C904CBB + 695772
UIKitCore UIApplicationMain + 336
XEssentials main + 100
dyld 9DC34712-11AA-3B1D-AFE0-01B95A6E40D3 + 20008
)
Application_Start
Application_ActiveXUI is only an example. The problem is not specific to XUI. The same behavior occurs with various other classes, including:
- my own project classes
- classes from libraries
- classes that previously worked fine for a long time
- The classes do exist
- The compiler clearly knows them (otherwise the build would fail)
- The error happens only at runtime, during static module initialization
- This does not look like a coding or reference error
- The issue reappears randomly after some time
- Sometimes without meaningful code changes
- Cleaning the project is therefore only a temporary workaround, not a real solution
- Is this a known or reproducible issue with the Hosted Builder?
- Is this likely a cache or packaging problem on the builder side?
- Is there any way to prevent this permanently, other than repeatedly cleaning the project?